Analog actuator 4-way REG KNX. Analog actuator receives KNX telegrams and converts them into current and/or voltage signals, e.g. for heating, air conditioning and ventilation technology. The actuator has 4 independent analog outputs. Type of signal output (0 to 10 V, 0 to 1 V, 0 to 20 mA, 4 to 20 mA) In addition, the output status can be evaluated via status and/or switching object. The actuator can be expanded with the expansion analog module TYF684E with a further 4 analog outputs. The voltage outputs are monitored for short circuits. The actuator has a system interface for connecting the expansion modules. The device has a programming button with a red LED. The two statuses are displayed via a green/red LED (operation/error). Bus connection via connection terminal. Connection of the outputs with screw terminals. The actuator requires a 24 V AC power supply to operate. Each channel can be programmed separately. Outputs that are not required can be switched off. The format of the input value is 8 bits or 16 bits. In dimming actuator mode, 8 bits for the input objects. Two forced controls can be carried out. The input variables are monitored cyclically. The reaction when the monitoring time is exceeded can be set. Behavior in the event of a bus voltage failure can be set, as can behavior in the event of a bus voltage return.